en.Wedoany.com Reported - Severn Trent Water has purchased four Grundoburst 400G pipe bursting machines from Tracto for its network renewal projects during AMP8. The water company, serving millions of customers, plans to increase its use of trenchless technology during this regulatory period.

Pipe bursting is a trenchless construction method that replaces old infrastructure by pulling a new pipe through a damaged or unreliable existing pipe, "bursting" the old pipe into the surrounding soil without the need for extensive excavation. Severn Trent chose the Grundoburst 400G for its flexibility and ability to rehabilitate pipes ranging from 2 inches to 10 inches in diameter. The machine features a unique trapezoidal rod that can handle bends with a radius of up to 35 mm.

During 2025, Tracto trained a total of 150 operators. Bursting specialist, senior trainer, demonstrator, and trenchless consultant Arnie Bailey subsequently provided on-site support to the team, assisting with the initial bursting operations.

In the Bagnall area of Stoke-on-Trent, one of the new machines has completed 950 meters of pipe renewal work on a section with aging infrastructure and severe burst pipe issues. Lawrence Twiddy, Severn Trent's Staffordshire Network Construction Manager, attended the equipment training and arranged on-site support for the first bursting operation.

Twiddy stated that Arnie was knowledgeable and highly capable, providing great assistance during the first bursting operation in Bagnall. The team has now successfully completed the bursting work for the entire project and is very satisfied with the equipment. This technology and equipment will be transformative over the remaining four years of AMP8.

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